11052111124521 has 6 divisors (see below), whose sum is σ = 15964160513210. Its totient is φ = 7368074083008.

The previous prime is 11052111124489. The next prime is 11052111124541. The reversal of 11052111124521 is 12542111125011.

11052111124521 is a `hidden beast` number, since 1 + 1 + 0 + 5 + 2 + 1 + 11 + 124 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10630697225625 + 421413898896 = 3260475^2 + 649164^2 .

It is not a de Polignac number, because 11052111124521 - 2⁵ = 11052111124489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11052111124541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 614006173576 + ... + 614006173593.

Almost surely, 2^{11052111124521} is an apocalyptic number.

It is an amenable number.

11052111124521 is a deficient number, since it is larger than the sum of its proper divisors (4912049388689).

11052111124521 is a wasteful number, since it uses less digits than its factorization.

11052111124521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228012347175 (or 1228012347172 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 27.

Adding to 11052111124521 its reverse (12542111125011), we get a palindrome (23594222249532).

The spelling of 11052111124521 in words is "eleven trillion, fifty-two billion, one hundred eleven million, one hundred twenty-four thousand, five hundred twenty-one".